1010381 has 2 divisors, whose sum is σ = 1010382. Its totient is φ = 1010380.

The previous prime is 1010357. The next prime is 1010407. The reversal of 1010381 is 1830101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532900 + 477481 = 730^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010381 - 2¹⁰ = 1009357 is a prime.

It is a super-2 number, since 2×1010381² = 2041739530322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505190 + 505191.

It is an arithmetic number, because the mean of its divisors is an integer number (505191).

2^1010381 is an apocalyptic number.

It is an amenable number.

1010381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010381 is an equidigital number, since it uses as much as digits as its factorization.

1010381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1010381 is about 1005.1770988239. The cubic root of 1010381 is about 100.3448428008.

Adding to 1010381 its reverse (1830101), we get a palindrome (2840482).

The spelling of 1010381 in words is "one million, ten thousand, three hundred eighty-one".